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Journal of the Society of Materials Science Japan
Time-dependent-change of flowability of fresh concrete is very important for developping concrete practice design method. In this study, in order to develop a predicting method of the change of viscosity for cement paste used polycarboxylate based superplasticizer referencing Hattori-Izumi theory, time-depending-change test of cement paste was carried out. The main factors of this experiment was type of powder. For lime powder which is not active powder, viscosity kept steady with time. It wasdoi:10.2472/jsms.53.572 fatcat:e3ky637bavhmtc4gj3ezsoaxp4